html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    font-family: sans-serif;
}

.app {
    margin: 0 auto;
    width: 900px;
    max-width: calc(100% - 30px);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

h1 {
    text-align: center;
}

.top-bar {
    display: flex;
    gap: 5px;
    margin-bottom: 5px;
}

.task-counter {
    background: rgb(2, 70, 165);
    color: #fff;
    text-align: center;
    border-radius: 10px;
    width: 30%;
    padding: 10px;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.task-counter h2 {
    margin: 0 0 5px 0;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.row {
    display: flex;
    gap: 5px;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

#todoform {
    display: flex;
    flex-direction: column;
    flex: 1;
    margin: 0;
    padding: 0;
    gap: 5px;
    align-content: center;
    justify-content: center;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.todo-form {
    display: flex;
    flex-direction: column;
    flex: 1;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.category-select {
    padding: 5px;
}

.todo-name {
    padding: 5px;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

button {
    cursor: pointer;
    border: 0;
    border-radius: 10px;
    color: #fff;
    background: rgb(20, 128, 31);
    padding: 7px 10px;
}

button:hover {
    background: rgb(39, 174, 53);
}

main {
    display: flex;
    gap: 5px;
}

.sidebar {
    width: 30%;
}

.category {
    padding: 5px 9px;
    border-radius: 10px;
    background: #ededed;
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: #000;
    text-decoration: none;
}

.category .count {
    color: #fff;
    background: rgb(222, 124, 12);
    padding: 5px 10px;
    display: inline-block;
    border-radius: 20px;
    height: 20px;
    text-align: center;
}

.todo-list {
    overflow: auto;
    flex: 1;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.todo {
    border-radius: 10px;
    padding: 15px;
    display: flex;
    flex-direction: row;
    background: #e6edf5;
    margin-bottom: 5px;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.todo:nth-child(odd) {
    background: #d9e6f4;
}

.todo-name {
    flex: 1;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.todo button {
    width: 15%;
}

.todo.done {
    opacity: 0.3;
}

button.undone {
    background: rgb(222, 124, 12);
}

.warning, .success {
    background: red;
    color: white;
    padding: 8px;
    font-size: 0.8em;
    margin-bottom: 5px;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    box-sizing: border-box;
    transform: translateY(-100%);
    animation-name: message;
    animation-duration: 5s;
    text-align: center;
}

.success {
    background: rgb(36, 152, 0);
}

@keyframes message {
    0% { transform: translateY(-100%); }
    10% { transform: translateY(0%); }
    90% { transform: translateY(0%); }
    100% { transform: translateY(-100%); }
}